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Build Better Interfaces
Opensource UI gives you free React and Next.js components to copy into your own code. Phone mockups, forms, widgets, and more, with live previews so you can see what you're getting. MIT licensed, for personal and commercial use.
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Calendar components
Five copy-paste calendar patterns made for real products.
Pick a time
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Booking Slot Calendar
Preview, setup, and usage included.
View componentSeptember 2026
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Date Range Picker
Preview, setup, and usage included.
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Event Countdown Card
Preview, setup, and usage included.
View componentSeptember 2026
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Month Picker Calendar
Preview, setup, and usage included.
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Week Strip Calendar
Preview, setup, and usage included.
View componentCopy. Paste.
Make it yours.
MIT licensed
Personal and commercial use.
No package lock-in
The source code lives in your app.
Built on primitives
React, Next.js, Tailwind, Radix.